Osteology

Skull and mandible, inferior view

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Image #35-6
Bassett ImageDiagram Image
Legend Image
Osteology
Skull and mandible, inferior view
The anteroposterior diameter of the foramen magnum is unusually large in this skull. The view of the occipital bone (41-2) demonstrates the more common shape of this opening.
1 . Zygomaticomaxillary suture
2 . Mandible
3 . Greater palatine foramen
4 . Zygomatic arch
5 . Posterior border of vomer bone
6 . Foramen ovale
7 . Foramen spinosum
8 . Petrosal part of temporal bone
9 . Styloid process
10 . External acoustic meatus
11 . Stylomastoid foramen
12 . Mastoid process
13 . Occipitomastoid suture
14 . Nasal bone
15 . Infraorbital foramen
16 . Body of maxilla
17 . Median palatine suture & Palatine process of maxilla
18 . Horizontal plate & Sphenoid.process palatine bone
19 . Coronoid process
20 . Pterygoid hamulus
21 . Lateral plate of pterygoid process
22 . Medial plate of pterygoid process
23 . Body sphenoid bone
24 . Foramen lacerum (lingula of sphenoid bone seen crossing this opening)
25 . Basal part occipital bone
26 . Petrooccipital fissure
27 . Carotid canal
28 . Jugular fossa
29 . Occipital condyle
30 . Sagittal suture (visible through foramen magnum)
31 . Mastoid foramen
32 . External occipital crest (unusually prominent)